Write a short note on the allotropy of sulphur.

Explanation

The important allotropes of sulphur are a) yellow rhombic (`alpha`. Sulphur) b) Monoclinic (`beta` - sulphur)
`to` The stable from is `alpha`-sulphur (at room temperature)
Rhombic sulphur (`alpha`-Sulphur) :
`to` Colour : Yellow.
`to` Melting point : 385.8K.
`to` Specific gravity : 2.06.
`to` It is insouble in water and partially soluble in alcohol, benzene etc. and readily soluble in `CS_(2)`.
Monoclinic sulphur (`beta` - Sulphur) :
`to` Melting point : 392K
`to` Specific gravity : 1.98.
`to` It is soluble in `CS_(2)`.
`to` Rhombic sulphur transforms to monoclinic sulphur by heating above 369K. This temperature is called transition temperature.